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- M. Fiorini, P. Dalpiaz, V. Guidi
UNIFE, Ferrara
- G. Ambrosi
INFN-PG, Perugia
- R.W. Assmann, I. Efthymiopoulos, L. Gatignon, W. Scandale
CERN, Geneva
- C. Biino
INFN-Torino, Torino
- Y.A. Chesnokov
IHEP Protvino, Protvino, Moscow Region
- Yu.M. Ivanov
PNPI, Gatchina, Leningrad District
- R. Santacesaria
INFN-Roma, Roma
- A.M. Taratin
JINR, Dubna, Moscow Region
- A. Vomiero
INFN/LNL, Legnaro, Padova
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An efficient and robust collimation system is mandatory for any superconducting hadron collider, in particular for the LHC, which will store a beam of unprecedented high intensity and energy. The usage of highly efficient and short primary bent-crystal collimators might be a possibility for reaching nominal and ultimate LHC intensity. Over the last years, groups in Russia (St. Petersburg) and Italy (Ferrara) have developed crystal production methods, which considerably improve the crystal quality. In view of the crystal-collimation experiments at the Tevatron and of the potential improvement compared with the phas·10-1 LHC collimation system, considering the recent progress in crystal technology, we proposed experiments for crystal characterization in the SPS beam lines. Major objectives will be: 1) qualification of the new crystals to be used in the Tevatron; 2) measuring the channeling efficiency of long crystals with 1 mrad and/or 8 mrad bending angle; and 3) comparison of loss patterns around the ring for a crystal with one for amorphous material. In this paper we will report the progress towards the SPS experiment.
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